The cloud images bundled by various linux distributions have password authentication disabled by default for security reasons. The only possible way to login to an instance launched using one of these images is by specifying a security key during boot and using the key to ssh. 353 more words

Linux (/ˈlɪnəks/ lin-uks or, less frequently used, /ˈlaɪnəks/ lyn-uks) is a Unix-like and mostly POSIX-compliant computer operating system assembled under the model of free and open-source software development and distribution. 378 more words

While Linux is running our phones, friend requests, tweets, financial trades, ATMs and more, most of us don’t know how it’s actually built. This short video takes you inside the process by which the largest collaborative development project in the history of computing is organized. 44 more words